Assuming Negligible Friction,what Spring Constant Would Be Needed by the Spring

question 75

Multiple Choice

Assuming negligible friction,what spring constant would be needed by the spring in a "B-B gun" to fire a 10-g pellet to a height of 100 m if the spring is initially compressed by 0.10 m?

• A)20 N/cm
• B)20 N/m
• C)200 N/m
• D)2000 N/cm
• E)0.0020 N/m

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